Gun



J. PACIFICO.

GUN.

APPLICATION mm JUNE 30, I919.

1,340,79 Patented May 18, 1920.

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GUN. APPLICATION FILED JUNE 30. I9I-9.

1,340,791. Patented y 18, 1920.

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A 6 Pa 0 i fz' c o WITNESS: IN VENTOR.

- y 8 gm ATTORNEY.

UNITED STATES PATENT OFFICE.

' JAMES PACIFICO, 0F DENVER, COLORADO.

GUN.

' Application filed June 30,

To all whom it mag concern Be it known that 1, JAMES PAOIFICO, a citizenof the United States, residing at Denver, in the county of Denver andState of Colorado, have invented new and useful Improvements in Guns, ofwhich the followin is a specification.

1 his invention relates to improvements in machine guns and theprincipal object of the invention is to provide a gun for shooting shotgun shells.

Another object of the invention is to provide a crank for operatingmeans for feeding the shells into firing position, means for cocking thegun and means for firing the gun.

Another object of the invention is to provide a pair of drums which areprovided with registering recesses in their peripheries to form chambersfor receiving the shells and holding them while being fired.

The invention also consists in certain other features of constructionand in the combination and arrangement of the several parts, to behereinafter fully described, illustrated in the accompanying drawingsand specifically pointed out in the appended claim.

In describing my invention in detail, reference will be had to theaccompanying drawings wherein like characters denote like orcorresponding parts throughout the several views, and in which Figure 1is a side View of a gun constructed in accordance with my invention;

Fig. 2 is a longitudinal section through the rear portion thereof;

Fi 3 is a like view showing the parts in a di erent position;

Fig. 4 is a cross section on line 4-4: of Fi 1' Figfo is a section online 5-5 of Fig. 2;

Figs. 6 and 7 are detailed views.

In these views 1 indicates the supporting stand or tripod of the gun, 2the barrel and 3 the water chamber. The gun is mounted on the tripod, inthe usual manner, so that it may have turning movement thereon and alsoa swinging movement in a vertical plane. Within the breech chamber islocated a pair of drums 4 and 5. These drums are arranged one above theother and are supported to rotate about a horizontal axis. The lowerdrum is of but half the size of the upper drum and said upper drum isSpecification of Letters Patent.

Patented May 18, 1920.

1919. Serial No. 307,550.

provided with four semicircular recesses G in its periphery. Theserecesses extend from one end of the drum to the other and are located 15apart. The lower drum 5 is provided with a pair of semicircular recesses7 which are located at diametrically opposite points on said drum sothat as the drums are rotated in unison the recesses in the lower drumwill register with those in the upper drum to form a circular chamberand this chamber forms an extension of the barrel. The outer ends of thedrums fit snugly against the outer wall of the breech chamber whichreceives the breech end of the barrel so as to prevent the escape of thegases between the said parts. The shells 8 are carried by the usual belt9 and this belt is fed between the two rollers when the same are rotatedso as to bring the cartridges within the chamber formed by the recesses6 and 7. This belt is guided by the small rollers 10. The drums arerotated by means of the worm shaft 11 having the worms 12 and 13 thereonwhich engages the worm wheels 14 and 15 secured to the drums. This shaft11 is rotated by a crank wheel 16, the shaft 17 of which has the beveledgear 18 secured thereon engaging with a like gear on a stub shaft 19 andthis stub shaft is connected with the worm shaft 11 by the beveled gears20. Thus when the crank is turned the worm shaft will be rotated so asto impart movement to the drums.

The firing pin 21 has a latch member'22 connected therewith and thislatch member is provided with a lug 23. A spring 24 tends to hold thepin in firing position. A spring controlled sear 25 is adapted to engagewith the latch member 22 to hold the firing pin in retracted positionand this sear is provided with an extension having a lug 26 thereon. Thelugs 23 and 26 are adapted to be engaged by a cam member 27 so as toretract the firing pin and to operate the sear to release the firingpin. This cam member 27 is actuated by the crank member by means of theshafts and. gears 28.

It will thus be seen that when the crank is rotated the firing pin willfirst be forced into retracted position and said firing pin will be heldin this position by the sear 25 engaging the latch member. As thismovement is taking place the drums will be rotated so as to bring acartridge into firing position. Upon the further rotation of the crankthe cam member Will strike the lugs 26 and thus depress the soar topermit the firing pin to spring forwardly and thus fire the shell. Thenthe firing pin will be retracted again by the cam member striking thelug 23 and the drums will bring a new cartridge into firing position.Thus the un Will continue to fire as long as the she ls are being fedthereto and the crank turned.

The shells or cartridges are made similar to the cartridges used in shotguns though I would prefer to use shot of larger size.

It is thought from the foregoing description that the advantages andnovel features of my invention will be readily apparent.

I desire it to be understood that I may make changes in theconstrurvrtion and in the combination and arrangement of the severalparts, provided that such changes fall within the scope of the appendedclaim.

What I claim is A gun of the class described comprising a breechchamber, a pair of recessed drums therein, a belt containing shot guncartridges, means for rotating the drums to feed the belt between themand to bring the recesses together to form a cartridge-receivingchamber, a crank connected with said drumain crating means ahorizontally and longitudinally movable firing pin, a soar for holdingthe pin in retracted position, and means operated by the crank forretracting the pin and Withdrawing the sear.

In testimony whereof I aflix my signature.

JAMES PACIFICO.

